U.S. patent application number 16/271221 was filed with the patent office on 2019-09-26 for suction or blower device.
The applicant listed for this patent is Positec Power Tools (Suzhou) Co., Ltd.. Invention is credited to Qimeng An, Xiahong Dai, Jiabo Liu, Jinhua Liu, Feng Shen, Mingxiang Wang, Xuefeng Yu, Shisong Zhang.
Application Number | 20190290080 16/271221 |
Document ID | / |
Family ID | 52114183 |
Filed Date | 2019-09-26 |
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United States Patent
Application |
20190290080 |
Kind Code |
A1 |
Liu; Jiabo ; et al. |
September 26, 2019 |
Suction or Blower Device
Abstract
The present invention relates to a blower vacuum device having a
housing with an air inlet and an air outlet, a motor accommodated
in the housing, a fan driven by the motor, and a plurality of
blowing accessories adapted to be connected to the air outlet
respectively when the suction or blower device works. These
different blowing accessories can perform various cleaning
functions, thus meeting the cleaning demands in different places or
in a specific area.
Inventors: |
Liu; Jiabo; (Suzhou, CN)
; Yu; Xuefeng; (Suzhou, CN) ; Zhang; Shisong;
(Suzhou, CN) ; Dai; Xiahong; (Suzhou, CN) ;
Wang; Mingxiang; (Suzhou, CN) ; Liu; Jinhua;
(Suzhou, CN) ; Shen; Feng; (Suzhou, CN) ;
An; Qimeng; (Suzhou, CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Positec Power Tools (Suzhou) Co., Ltd. |
Suzhou |
|
CN |
|
|
Family ID: |
52114183 |
Appl. No.: |
16/271221 |
Filed: |
February 8, 2019 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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14031823 |
Sep 19, 2013 |
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16271221 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
E04D 13/0765 20130101;
A47L 5/14 20130101; A47L 9/242 20130101; Y10T 29/49826 20150115;
B08B 1/002 20130101; A47L 5/24 20130101; A47L 9/02 20130101; A47L
9/0027 20130101; B05B 1/005 20130101; A47L 9/322 20130101; A47L
5/225 20130101; B08B 5/02 20130101; B08B 5/04 20130101 |
International
Class: |
A47L 5/14 20060101
A47L005/14; A47L 9/24 20060101 A47L009/24; A47L 5/22 20060101
A47L005/22; B08B 5/04 20060101 B08B005/04; B08B 5/02 20060101
B08B005/02; B08B 1/00 20060101 B08B001/00; A47L 9/32 20060101
A47L009/32; A47L 5/24 20060101 A47L005/24; A47L 9/02 20060101
A47L009/02; A47L 9/00 20060101 A47L009/00 |
Foreign Application Data
Date |
Code |
Application Number |
Jun 26, 2013 |
CN |
201310259521.4 |
Jun 26, 2013 |
CN |
201310260023.1 |
Jun 26, 2013 |
CN |
201310261409.4 |
Sep 4, 2013 |
CN |
201310397878.9 |
Claims
1. A handheld blower having a suction function, comprising: a
housing having an air inlet and an air outlet, wherein the air
inlet and the air outlet are integrally formed on the housing, and
wherein the air inlet and the air outlet have different structures
and are configured to directly couple to different accessories; a
motor accommodated in the housing; a fan driven by the motor; and a
plurality of blowing accessories adapted to be connected to the air
outlet, wherein the plurality of blowing accessories further
comprises (a) at least three longitudinal blower tubes, wherein a
first and second blower tube of said at least three longitudinal
blower tubes includes a mating rotational connection therebetween
such that said first blower tube can rotate 360 degrees relative to
the second blower tube; (b) an elbow brush having a blower nozzle
with bristles and the blower nozzle being angular to the air
outlet; (c) a flat brush having a narrow outlet extending
perpendicularly to the air outlet; and (d) a gutter cleaning pipe
having a straight pipe and an elbow pipe connected to the straight
pipe, and wherein each blowing accessory of the plurality of
blowing accessories is interchangeable with each other blowing
accessory of the plurality of blowing accessories, and wherein each
blowing accessory of the plurality of blowing accessories is
directly connectable to the air outlet of the housing, and wherein
the housing is configured to directly couple to one type of the
plurality of types of blowing accessories at the air outlet at a
given time.
2. The handheld blower according to claim 1, wherein one of said at
least three blower tubes has a blowing opening and a
cross-sectional area of the air outlet, wherein a ratio of the
cross-sectional area of the air outlet to a cross-sectional area of
the blowing opening is between 4-500.
3. The handheld blower according to claim 2, wherein one of the
blower tubes comprises a short tube with a blowing opening, and a
ratio of a cross-sectional area of the air outlet to a
cross-sectional area of the blowing opening is between 4-20, and
the short tube has a length no more than 200 mm.
4. The handheld blower according to claim 3, wherein the short tube
has a big end and a small end, the blowing opening is formed on the
small end, and the big end is adapted to be connected to the air
outlet directly.
5. The handheld blower according to claim 4, wherein the blower
tube further comprises at least one of a first nozzle and a second
nozzle, the first nozzle having a first blower opening and the
second nozzle having a second blower opening, a ratio of a
cross-sectional area of the air outlet to a cross-sectional area of
the first blowing opening is between 20-100, and a ratio of a
cross-sectional area of the air outlet to a cross-sectional area of
the second blowing opening is between 100-500.
6. The handheld blower according to claim 5, wherein the first
nozzle comprises a first joint end and a first free end, the first
blowing opening is formed on the first free end, and the first
joint end is detachably connected to the small end.
7. The handheld blower according to claim 4, wherein the plurality
of blowing accessories further comprises a flexible tube assembly
having a flexible tube with two flexible jointed ends formed
thereon respectively, and the flexible tube assembly is detachably
connected to the small end.
8. The handheld blower according to claim 5, wherein the first
nozzle comprises a first joint end and a first free end, the first
blowing opening is formed on the first free end, the second nozzle
comprises a second joint end and a second free end, the second
blowing opening is formed on the second free end, and the second
joint end is adapted to be connected on the first free end.
9. The handheld blower according to claim 6, wherein the plurality
of blowing accessories further comprises a flexible tube assembly
having a flexible tube with two flexible jointed ends formed
thereon respectively, the flexible tube assembly is detachably
connected between the small end and the first jointed end, the
second nozzle comprises a second joint end and a second free end,
the second blowing opening is formed on the second free end, and
the second joint end is adapt to be connected on the first free
end.
10. The handheld blower according to claim 2, wherein the blower
tube further comprises a bristle head mounted around the
circumference of the blowing opening, the bristle head extending
along the same direction as a longitudinal extending direction of
the blower tube.
11. The handheld blower according to claim 1, wherein the elbow
brush comprises a jointed end being configured to be connected with
the air outlet and a fixed end being configured to be angularly
bent and communicated to the jointed end, the bristles mounted
around the circumference of the fixed end and extending along the
same direction as a longitudinal extending direction of the fixed
end.
12. The handheld blower according to claim 11, wherein the bristles
have a certain length of no more than 40 mm.
13. The handheld blower according to claim 1, wherein the flat
brush comprises an air inlet nozzle extending longitudinally and an
air outlet nozzle being angular to the air inlet nozzle, the narrow
outlet is formed on a free end of the air outlet nozzle.
14. The handheld blower according to claim 13, wherein the air
outlet nozzle comprises a first pad and a second pad opposite the
first pad, the first pad and the second pad both have a piece of
rubber fixed thereon respectively.
15. The handheld blower according to claim 1, wherein the gutter
cleaning pipe is 360.degree. rotatably connected to the air
outlet.
16. The handheld blower according to claim 1, wherein the first
blower tube further comprises a middle pipe having a first end
detachably connected to the air outlet and a free end opposite said
first end, and wherein the second blower tube further comprises a
straight pipe having a first end and a second end.
17. The handheld blower according to claim 16, wherein said mating
rotational connection between said middle pipe and said straight
pipe further comprises a bump arranged on the free end of the
middle pipe, a circumferential groove arranged on the first end of
the straight pipe, and an axial guiding groove on the first end of
the straight pipe, wherein the axial guiding groove guides the bump
to enter and slide in the circumferential groove.
18. The handheld blower according to claim 17, wherein the bump has
an interference fit against the circumferential groove.
19. The handheld blower according to claim 1, wherein the straight
pipe comprises a set of small pipes coupled to one another through
a threaded fit.
20. The handheld blower according to claim 19, wherein each small
pipe has a coupling portion supporting at least two heads of
thread.
21-31. (canceled)
Description
BACKGROUND
[0001] The present invention relates to a suction or blower device
(also commonly known as a blower vac). A blower vac (or a vacuum
and blower) is usually comprised of a housing having an air inlet
and an air outlet, a motor accommodated in the housing, and a fan
driven by the motor. The blower forms a directional airflow always
incoming from the air inlet and flowing out from the air outlet
through the rotating fan. Through the directional airflow, the
blower achieves the good effect of blowing dust (or collecting
fallen leaves) and is favoured as a necessary outdoor gardening
tool by more and more families.
[0002] However, the current blowers (or the vacuum and blowers)
only have a few functions. Aside from the removal of dust and
collection of fallen leaves, the current blowers (or the vacuum and
blowers) almost have no other functions. Even if for blowing dust
and collecting the fallen leaves, they are limited in application,
applied only to open gardens and paths outdoor. To clean high
places such as gutters and windows or to clean indoor furnishings
such as couches and desks, users are required to employ other
professional tools which would occupy a lot of space and cause a
heavy economical burden to users.
[0003] Nowadays, functional diversification has become the
scientific development trend.
[0004] Combining various different functions with one platform is
the major research and development goal of technicians in various
fields. The housing of every blower (or vacuum and blower) as a
platform for supplying directional airflow theoretically has the
ability of delivering diversified functions, but no such technology
appears at present. To meet the trend of functional
diversification, and more importantly to meet users' demands on low
cost and diversified functions, improvements on the existing
blowers (or vacuum and blowers) are necessary.
SUMMARY
[0005] A technical problem to be solved by the present invention is
to present a suction or blower device. This device should have a
range of functions with the price of a single suction or blower
tool to fully meet the users' demands of indoor and outdoor house
cleaning.
[0006] To solve the said technical problem, the present invention
adopts the following technical scheme: A suction or blower device,
comprising a housing having an air inlet and an air outlet, a motor
accommodated in the housing, a fan driven by the motor, and a
plurality of blowing accessories adapted to be connected to the air
outlet respectively.
[0007] The present invention has the following beneficial effects:
different blowing accessories adapted to be connected to the air
outlet, respectively, can provide different cleaning functions,
thus meeting the cleaning demands in different directions or in a
specific area.
[0008] Preferably, the blowing accessories comprises at least three
in a group of a blower tube extending longitudinally, an elbow
brush having a blower nozzle with bristles and the blower nozzle
being angular to the air outlet, a flat brush having a narrow
outlet extending perpendicularly to the air outlet, and a gutter
cleaning pipe having a straight pipe and an elbow pipe connected to
the straight pipe. Among the various blowing accessories mentioned
above, the whole suction or blower device is light and exquisite
after the blower tube is mounted on the whole suction or blower
device, so that users can easily and lightly blow the dust away
from the higher surface. Meanwhile, the blower tube avoids airflow
loss caused by the normal long tube, thus the blowing efficiency is
higher. The elbow brush has a relatively large-sized end, capable
of blowing and cleaning places such as corners and window bars
where dust gathers easily. The flat brush narrows and concentrates
the air coming from the narrow outlet, capable of blowing down
water beads and water membranes on the water-accumulating planes
such as mirrors and glass windows. The straight pipe of the gutter
cleaning pipe is used to guide the airflow into the elbow pipe. The
elbow pipe is set to adapt to eaves to guide the blowing airflow to
the gutter of the eave and facilitate cleaning fallen leaves. All
in all, each of the above four blowing accessories can be
independently adapted to an application site. The housing of the
suction or blower device of the present invention is joined to at
least three of the above accessories, so that the suction or blower
device has at least three functions.
[0009] Preferably, the blower tube having a blowing opening, a
ratio of a sectional area of the air outlet to a sectional area of
the blowing opening is between 4.about.500.
[0010] Preferably, the blower tube comprises a short tube with a
blowing opening, a ratio of a sectional area of the air outlet to a
sectional area of the blowing opening is between 4.about.20, the
short tube having a length no more than 200 mm.
[0011] Preferably, the short tube having a big end and a small end,
the blowing opening is formed on the small end, the big end is
adapted to be connected to the air outlet directly. The air blown
by the suction or blower device is accelerated and boosted through
the tapered small end before flowing out of the short tube, thus
improving the blowing efficiency and facilitating removal of some
target substances with large masses.
[0012] Preferably, wherein the blower tube further comprises at
least one of a first nozzle and a second nozzle, the first nozzle
having a first blower opening and the second nozzle having a second
blower opening, a ratio of a sectional area of the air outlet to a
sectional area of the first blowing opening is between
20.about.100, a ratio of a sectional area of the air outlet to a
sectional area of the second blowing opening is between
100.about.500.
[0013] Preferably, the first nozzle comprises a first joint end and
a first free end, the first blowing opening is formed on the first
free end, the first joint end is detachably connected to the small
end.
[0014] Preferably, the blowing accessories further comprise a
flexible tube assembly having a flexible tube with two flexible
jointed ends formed thereon respectively, the flexible tube
assembly is detachably connected to the small end.
[0015] Preferably, the first nozzle comprises a first joint end and
a first free end, the first blowing opening is formed on the first
free end, the second nozzle comprises a second joint end and a
second free end, the second blowing opening is formed on the second
free end, the second joint end is adapt to be connected on the
first free end. The second nozzle is detachably connected to the
first nozzle, thus saving manufacturing cost to a certain
extent.
[0016] Preferably, a diameter of the first free end is 10
mm.about.20 mm and a diameter of the second free end is 3
mm.about.10 mm. The two nozzles different in size are capable of
inflating large inflatable devices such as an air bed and small
inflation toys such as a swim ring, thus expanding the application
scope of inflation.
[0017] Preferably, the blowing accessories further comprise a
flexible tube assembly having a flexible tube with two flexible
jointed ends formed thereon respectively, the flexible tube
assembly is detachably connected between the small end and the
first jointed end, the second nozzle comprises a second joint end
and a second free end, the second blowing opening is formed on the
second free end, the second joint end is adapt to be connected on
the first free end.
[0018] Preferably, the blower tube further comprises a bristle head
mounted around the circumference of the blowing opening, the
bristle head extending along the same direction as a longitudinal
extending direction of the blower tube. With the bristle head, the
blower tube can blow air with a high speed and sweep the dust
accumulated in small gaps, especially in some instrument panels
with its bristle head.
[0019] Preferably, the elbow brush comprises a jointed end being
configured to be connected with the air outlet and a fixed end
being configured to be angularly bent and communicated to the
jointed end, the bristles mounted around the circumference of the
fixed end and extending along the same direction as a longitudinal
extending direction of the fixed end. The fixed end forms an angle
relative to the jointed end, improving the accessibility of the
elbow brush and bringing convenience to users to hold the suction
or blower device at a comfortable angle and easily clean places
that are hard to reach.
[0020] Preferably, the bristles have a certain length of no more
than 40 mm. The bristles shall be of an appropriate length, thus
facilitating dust removal in a relatively large area on one hand
with the full use of the blowing air on the other hand to prevent a
weakening of the blowing effect due to the long bristles.
[0021] Preferably, the flat brush comprises an air inlet nozzle
extending longitudinally and an air outlet nozzle being angular to
the air inlet nozzle, the narrow outlet is formed on a free end of
the air outlet nozzle. The air outlet nozzle that forms an obtuse
angle relative to the air inlet nozzle can smoothly guide the
direction of the air to reduce air loss, on one hand, and to
strengthen the accessibility of the flat brush to improve the
comfort of operating the flat brush, on the other hand.
[0022] Preferably, the air outlet nozzle comprises a first pad and
a second pad opposite the first pad, the first pad and the second
pad both have a piece of rubber fixed thereon respectively. The
rubber makes the cleaning of smooth surfaces easier and more
convenient and can prevent scratching the object surface.
[0023] Preferably, the gutter cleaning pipe is 360.degree.
rotatably connected to the air outlet.
[0024] Preferably, the blowing accessories further comprise a
middle pipe having one end detachably connected to the air outlet
and another end being 360.degree. rotatably connected to the
straight pipe. The middle pipe provides an angled convenience to
the adjustment of the elbow pipe and connects to the air outlet,
close to the position where the user holds the suction or blower
device to facilitate rotation.
[0025] Preferably, a bump arranged on one of the middle pipe and
the straight pipe, an axial guiding groove together with a
circumferential groove arranged on the other of the middle pipe and
the straight pipe, the bump is guided to enter and slide in the
circumferential groove through the axial guiding groove. The
adaptation structure of the straight pipe and the middle pipe is
simple to operate, low in manufacturing cost and convenient to
use.
[0026] Preferably, the bump has an interference fit against the
circumferential groove. The bump and the circumferential groove are
more tightly joined through the interference fit and do not rotate
relative to each other out of control.
[0027] Preferably, the straight pipe comprises a set of small pipes
coupled to one another through a threaded fit. The straight pipe
adopts a segmented design. On one hand, the storage space and
transportation cost are reduced. On the other hand, the user can
select the number of straight pipes according to his height and the
height of the gutter to flexibly adjust the height of the gutter
cleaning pipe. In addition, a threaded connection is reliable and
easily molded.
[0028] Preferably, each small pipe has a coupling portion
supporting at least two heads of thread. The design of a
multi-headed thread can shorten the rotation circles of the
straight pipes and improve assembling efficiency.
[0029] Preferably, the straight pipe having reinforcing ribs
longitudinally extending on an outer surface of the straight pipe.
No matter if the single pipe type or the segment type is used, the
straight pipe needs to support the elbow pipe, and the air impacts
to a certain degree when passing through the straight pipe, so that
it is necessary to reinforce the straight pipe. The reinforcing
ribs on the outer surface of the straight pipe not only improves
the strength of the straight pipe, but also serves as an anti-skid
device to facilitate holding.
[0030] Preferably, the elbow pipe is configured as a U shape
comprising a first portion connected to the straight pipe, a second
portion acting as a free end and a middle portion joined the first
portion and the second portion together, forming an angle
100.degree..about.115.degree. between the first portion and the
middle portion, and an angle 115.degree..about.120.degree. between
the middle portion and the second portion. The shape of the elbow
pipe can reduce the energy loss of the air when flowing to the
maximum extent and makes the elbow pipe easily reach the gutter of
the eave, so that gutter cleaning can be done with only half the
effort.
[0031] Preferably, the second portion has an extended length
between 85 mm and 100 mm. The second portion with a proper length
of the elbow pipe can more closely reach the gutter of the eave to
improve the gutter cleaning effect.
[0032] Preferably, at least one of the blowing accessories is
connected to the air outlet through a coupling unit. The coupling
unit at least comprises a joint conduit with one end coupled to the
air outlet and the other end connected to one of the blowing
accessories. Some of the blowing accessories can be directly
coupled to the air outlet while some need coupling through the
joint conduit. One joint conduit can provide coupling for many
accessories, thus saving costs and also expanding the application
scope of the joint conduit itself.
[0033] Preferably, the coupling unit further comprises a flexible
tube assembly detachably connected between the joint conduit and
one of the blowing accessories. The flexible tube assembly
connected between the joint conduit and the selected one of the
blowing accessories strengthens its accessibility, expanding the
application scope and facilitating operation.
[0034] Preferably, the suction or blower device further comprises a
deflating accessory detachably connected to the air inlet, the
deflating assembly having a deflating funnel detachably connected
to the air inlet and a deflating nozzle connected with the
deflating funnel.
[0035] Preferably, the air inlet having an inlet grill, the
deflating funnel having a big opening and a small opening, the big
opening of the deflating funnel communicating with the inlet grill
and the small opening communicating with the deflating nozzle with
a free end diameter of 3 mm.about.20 mm. The air inlet is connected
to the deflating nozzle with such a small inner diameter, so that
the suction or blower device can further execute the deflating
operation through the oriented airflow generated by the suction or
blower device. Without dismantling the air inlet grill, the
deflating funnel is installed through the air inlet grill, thus
simplifying the installation process.
[0036] Preferably, the blowing accessories further comprise a
flexible tube assembly releasably connected between the deflating
funnel and the deflating nozzle. Through this flexible tube
assembly, the working zone of the deflating nozzle is expanded and
the accessibility of the suction or blower device is improved.
[0037] Preferably, the suction or blower device is powered by a
battery connected to the housing. The battery-powered suction or
blower device is flexible and not limited to the length of the
power cord and position of the sockets and can be conveniently used
at various sites.
[0038] Preferably, the battery is a rechargeable battery, such as,
for example, a lithium type battery. The lithium battery is light
and highly efficient, making the suction or blower device also
light, convenient and easily operated.
[0039] Another technical problem to be solved by the present
invention is to present a method for setting a deflating accessory
to a suction or blower device through simple operations.
[0040] To solve the said technical problem, the present invention
adopts the following technical scheme:
[0041] A method for setting a deflating accessory to a suction or
blower device, the suction or blower device comprising a housing
having an air inlet and an air outlet, a motor accommodated in the
housing, a fan driven by the motor, an inlet grill for fixing to
the air inlet, a deflating assembly releasably attached to the air
inlet, the method comprising: setting the deflating accessory to
the inlet grill directly.
[0042] The present invention has the following beneficial effects:
it's convenient for the user to install the deflating accessory
directly to the suction or blower device through only one step of
process, without the operation of taking off the inlet grill.
[0043] Preferably, the inlet grill comprises a plurality of grids
with interval between, the deflating accessory having a plurality
of spring claws, the spring claws engaged with the grids when the
deflating accessory being attached to the inlet grill.
BRIEF DESCRIPTION OF THE DRAWINGS
[0044] The above and other objects, features and advantages of the
invention will become more apparent from the following description
of embodiments in conjunction with the accompanying drawings in
which:
[0045] FIG. 1 is a schematic view of the housing of the blower in a
preferred configuration of the present invention.
[0046] FIG. 2 is a schematic view of combination of the housing and
the normal blower tube of the blower as shown in FIG. 1.
[0047] FIG. 3a is a schematic view of the gutter cleaning pipe in a
preferred configuration of the present invention.
[0048] FIG. 3b is a schematic view of the short tube in a preferred
configuration of the present invention.
[0049] FIG. 3c is a schematic view of the elbow brush in a
preferred configuration of the present invention.
[0050] FIG. 3d is a schematic view of the flat brush in a preferred
configuration of the present invention.
[0051] FIG. 3e is a schematic view of the inflating accessory in a
preferred configuration of the present invention.
[0052] FIG. 3f is a schematic view of the second brush in a
preferred configuration of the present invention.
[0053] FIG. 4 is a schematic view of the housing of the blower as
shown in FIG. 1 connecting the short tube.
[0054] FIG. 5 is a schematic view of the housing of the blower as
shown in FIG. 1 connecting the gutter cleaning pipe 1.
[0055] FIG. 6 is a connection relation view of gutter cleaning pipe
as shown in FIG. 5.
[0056] FIG. 7 is a schematic view of the housing of the blower as
shown in FIG. 1 connecting the elbow brush assembly.
[0057] FIG. 8 is a schematic view of the housing of the blower as
shown in FIG. 1 connecting the flat brush.
[0058] FIG. 9 is a schematic view of the housing of the blower as
shown in FIG. 1 connecting the inflating accessory.
[0059] FIG. 10 is an exploded view of the inflating accessory as
shown in FIG. 9.
[0060] FIG. 11 is a schematic view of the housing of the blower as
shown in FIG. 1 connecting a second brush assembly.
[0061] FIG. 12 is an exploded view of the second brush accessory as
shown in FIG. 11.
[0062] FIG. 13 is a schematic view of the clamp.
[0063] FIG. 14 is a schematic view of the housing of the blower as
shown in FIG. 1 connecting the deflating accessory.
[0064] FIG. 15 is an exploded view of the deflating accessory as
shown in FIG. 14.
TABLE-US-00001 [0065] 9 housing 91 switch 92 operating handle 93
battery 94 air inlet 95 air outlet 950 elastic button 96 air inlet
grill 960 grid 10 orifice 2 short tube 21 big end 22 small end 1
gutter cleaning pipe 11 middle pipe 110 bump 12 straight pipe 120
circumferential 128 reinforcing rib 13 elbow pipe groove 131 first
portion 132 second portion 133 middle portion 3 elbow brush 31 bend
tube 311 jointed end 312 fixed end 32 bristles 4 flat brush 41 air
inlet nozzle 42 air outlet nozzle 421 narrow outlet 422 rubber 5
inflating accessory 51 first nozzle 511 first jointed end 512 first
free end 52 second nozzle 521 second jointed end 522 second free
end 53flexible tube 531 flexible tube assembly 61 second brush 532
flexible joint end 6 second brush accessory 7 deflating accessory
611 short nozzle 612 bristle head 71 deflating funnel 711 big
opening 712 small opening 713 pushing block 8 clamp 81 first
opening 82 second opening 100 blower 98 normal blower tube
DETAILED DESCRIPTION
[0066] The present invention shows a suction or blower device. In
this embodiment, the suction or blower device is a battery type
blower 100 and the battery is a lithium battery, so that the
suction or blower device is light and convenient. Of course, the
device may also be used as a vacuum and blower with both blowing
and dust collection functions. The suction or blower device not
only can be powered by the battery, but also by alternating current
or a gasoline engine.
[0067] As shown in FIG. 1 and FIG. 2, the blower 100 comprises a
housing 9 with an operating handle 92, an air inlet 94 and an air
outlet 95, a motor (not shown in the figure) accommodated in the
housing 9 and a fan (not shown in the figure). A battery 93 is
mounted below the operating handle 92. The operating handle 92 is
provided with a switch 91 for control startup and stop of the
motor. The fan is driven by the motor to rotate at a high speed and
generate a negative pressure after the switch 91 is turned on, so
that the air quickly enters the air inlet 94 and flows out from the
air outlet 95. The air inlet 94 and the air outlet 95 may be
respectively connected to the corresponding suction or blowing
accessories. For example in this case, the air inlet 94 of the
blower 100 is connected to an air inlet grill 96, while the air
outlet 95 may be connected to a normal blower 100 tube 98 to have
the blowing function. Of course, in other circumstances, the air
inlet 94 is connected to a vacuum pipe while the air outlet 95 is
connected to a dust collection bag. In this way, the blower 100 has
the dust collection function. To sum up, the air always enters from
the air inlet 94 and flows out from the air outlet 95 when the
blower 100 is working. Users can elect to install different suction
or blowing accessories in different cases.
[0068] To increase the functions of the blower 100 and ensure that
the blower 100 can clean all places in the house, the present
invention provides a range of blowing accessories which may be
connected to the air outlet 95. As shown in FIGS. 3a to 3f, the
blowing accessories comprise a short tube 2, a gutter cleaning pipe
1, an elbow brush 3, a flat brush 4, an inflating accessory 5 and a
second brush accessory 6. Different blowing accessories are adapted
to different application environments. In one working environment,
the blower 100 is adapted to be connected to a corresponding
blowing accessory. The following is a detailed description of the
combinations of various blowing accessories and the blower 100.
[0069] As shown in FIG. 3b and FIG. 4, the short tube 2 extends
longitudinally. The short tube 2 comprises a big end 21 detachably
connected to the air outlet 95 and a small end 22 away from the air
outlet 95. The cross section and size of the big end 21 are
approximately equivalent to those of the air outlet 95 so as to be
connected to the air outlet 95 through friction fit or other
method. The blowing opening is formed on the small end 22, and a
ratio of a sectional area of the air outlet 95 to a sectional area
of the small end 22 is between 4.about.20. Due to the variations of
the cross section, the air is suddenly boosted and obviously
accelerated in the process of flowing from the air outlet 95 to the
small end 22 of the short tube 2. In this embodiment, the short
tube 2 is relatively short, no more than 200 mm. It is short and
convenient so that users do not have to raise their arms when
blowing away hair from the couch, fallen leaves on the balcony, or
sawdust on the wood worktable, thus avoiding fatigue caused by the
common blower pipe. Due to its short character, the variation in
cross section from the air outlet 95 to the small end 22 becomes
more obvious, the air loss is further reduced, so that the air
blown out is more powerful and can conveniently clean higher
tabletops, for example.
[0070] As shown in FIG. 3a and FIG. 5, the blowing accessories
comprise the gutter cleaning pipe 1 primarily used for cleaning
fallen leaves and dust from the high eave. The total length of the
gutter cleaning pipe 1 is no less than 1,500 mm, comprising a
longitudinal straight pipe 12 and an elbow pipe 13 connected to the
free end of the straight pipe 12. The other end of the straight
pipe 12 away from the free end is detachably connected to the air
outlet 95 of the blower 100. The elbow pipe 13 can deeply go into
the gutter of the eave so as to clean fallen leaves accumulated in
it through the airflow.
[0071] The straight pipe 12 is formed by a series of connected
small pipes 12 so as to save space during transportation and
storage. The small pipes 12 are coupled to one another through a
threaded fit, namely the inner threads are fitted into the outer
threads, so that the connection is firm. Each small pipe has a
coupling portion supporting at least two heads of thread, so that
the coupling between the small pipes 12 is quicker and more
convenient. Of course, the number of the heads of thread may be 3
or 4, or may just be one. Of course, the small pipes 12 may be
connected in other ways, such as an interference fit or fit between
bumps and grooves. Those skilled in the art can figure out many
other configurations, so that detailed examples are omitted here.
Longitudinal reinforcing ribs 128 are mounted on the outer surface
of the straight pipe 12 to strengthen the straight pipe 12 and
prevent damage due to poor strength, on one hand, and serve as an
anti-skid device and facilitate connection of the small pipes 12 on
the other hand.
[0072] As shown in FIG. 5, the elbow pipe 13 is configured as a U
shape comprising a first portion 131 connected to the straight
pipe. A second portion 132 acting as a free end of the elbow pipe,
and a middle portion 133 joining the first portion 131 and the
second portion 132 together, forming an angle .alpha. between the
first portion 131 and the middle portion 133 and an angle .beta.
between the middle portion 133 and the second portion 132. To
reduce energy loss of the air in the elbow pipe 13 to the largest
extent, the angle .alpha. and angle .beta., respectively, have a
certain range. In this embodiment,
100.degree..ltoreq..alpha..ltoreq.115.degree. and
115.degree..ltoreq..beta..ltoreq.120.degree.. The second portion
132 of the elbow pipe 13 has an extending length. To make the elbow
pipe 13 closer to the gutter of the eave and achieve the optimum
cleaning effect, the length in this embodiment is 85 mm.about.100
mm.
[0073] There is a relatively long distance from the free end of the
elbow pipe 13 to the blower 100 held by the user, so that it may be
inconvenient for the user to adjust the angle of the elbow pipe 13,
causing lower efficiency because of moving around. As shown in FIG.
5 and FIG. 6, to solve the above mentioned problem, the blowing
accessories in this embodiment further comprise a middle pipe 11
located between the straight pipe 12 and the air outlet 95 of the
blower 100. Through the middle pipe 11, the straight pipe 12
circumferentially rotates relative to the air outlet 95, so the
elbow pipe 13 can rotate 360.degree. around the axis of the
straight pipe 12. The dead corners of the gutter can be cleaned
conveniently. A coupling structure is mounted between the middle
pipe 11 and the straight pipe 12, facilitating the circumferential
rotation of the middle pipe 11 relative to the straight pipe 12. In
this embodiment, the coupling structure comprises a bump 110
arranged on the middle pipe 11 and an axial guiding groove (not
shown in the figure) together with a circumferential groove 120
arranged on the straight pipe 12. When installing the middle pipe
11 and the straight pipe 12, the bump 110 of the middle pipe 11
aligns with the axial guiding groove on the straight pipe 12, so
that the axial movement between the middle pipe 11 and the straight
pipe 12 is limited; but the bump 110 can slide in the groove, so
that the straight pipe 12 can rotate 360.degree. circumferentially
relative to the middle pipe 11. Of course, the rotation of the
straight pipe 12 relative to the middle pipe 11 is allowed only
when the angle of the elbow pipe 13 needs to be adjusted. To
prevent random rotation of the straight pipe 12, the bump 110 has
an interference fit with the circumferential groove 120. Of course,
damping can be formed between the bump 110 and the circumferential
groove 120 in other ways, so that detailed description is omitted
here. In addition, the positions of the bump 110 and the axial
guiding groove as well as the circumferential groove 120 may be
exchanged. Namely the bump 110 can be arranged on the straight pipe
12, while the middle pipe 11 is provided with the axial guiding
groove and the circumferential groove 120 matched with the bump 110
in dimension, so that the straight pipe 12 can also
circumferentially rotate relative to the middle pipe 11 to meet the
needs of changing the direction of the elbow pipe 13.
[0074] Those skilled in the art can easily figure out other
embodiments to have a rotary connection between the straight pipe
12 and the middle pipe 11, so examples are omitted here. Of course,
the middle pipe 11 is not a must, the gutter cleaning pipe 1 can
also circumferentially rotate relative to the air outlet 95, if
only the rotatable coupling structure is mounted between the
straight pipe 12 and the air outlet 95.
[0075] As shown in FIG. 3c and FIG. 7, the blowing accessories
comprise an elbow brush 3 comprising a bent tube 31 and bristles 32
mounted on the bent tube 31. The bent tube 31 comprises a jointed
end 311 being configured to be connected with the air outlet 95 of
the blower 100 and a fixed end 312 being configured to be angularly
bent and communicated to jointed end 311. The angle between the
fixed end 312 and the jointed end 311 is more than 90.degree. but
less than 180.degree.. In this embodiment, the end section of the
fixed end 312 is round and the end has an inner diameter of 55
mm.about.80 mm. Of course, the cross section of the fixed end 312
is not limited to be round as it may also be oval, triangle,
quadrangle or other polygons. The bristles 32 are mounted around
the fixed end 312, and extend in the same direction with the fixed
end 312. In this embodiment, the bristles 32 are fixed on an
annular mounting block (not shown) first, and then the mounting
block is embedded in the annular groove (not shown) at the
circumference of the fixed end 312. In this way, the bristles 32
can be detached independently for washing and cleaning. Of course,
the bristles can also be directly transplanted at the circumference
of the fixed end 312 of the bent tube 31 as long as the process is
allowed, or quickly and effectively mounted on the bend tube 31 by
other methods, detailed description is omitted here. The bristles
32 have a certain length. In this embodiment, the length of the
bristles 32 does not exceed 40 mm, ensuring that the blown air has
a certain speed and pressure in a contact range of the bristles 32.
The elbow brush 3 is directly fixed at the air outlet 95 through
the jointed end 311, so the blower 100 can remove dust and spider
webs from window lattices and corners, and wipe picture posters,
etc. on the wall when blowing air. The dust is blown and swept away
instantly by the air, thus improving the cleaning efficiency.
[0076] In this embodiment, the elbow brush 3 is directly connected
to the air outlet 95, so that the user can easily reach dirty
window lattices, lampshades and corners on the outer walls with the
elbow brush 3. In places that are difficult to clean such as the
corners on the ceiling, the elbow brush 3 can be properly extended,
for example the middle pipe 11 and straight pipe 12 can be used as
an extension pipe between the elbow brush 3 and the air outlet
95.
[0077] As shown in FIG. 3d and FIG. 8, the blowing accessories
comprise a flat brush 4 comprising a longitudinal air inlet nozzle
41 and an air outlet nozzle 42 forming a certain bent angle
relative to the air inlet nozzle 41. To control the air loss when
the air passes from the air inlet nozzle 41 to the air outlet
nozzle 42, the air inlet nozzle 41 and the air outlet nozzle 42
form an angel. In this embodiment, the angle is
95.degree..about.165.degree.. The air outlet nozzle 42 has a narrow
outlet 421 extending perpendicularly to the air inlet nozzle 41 and
has a certain length of between 100 mm and 400 mm. After being
mounted on the blower 100, the flat brush 4 is capable of guiding
the air from the air outlet 95 to the narrow outlet 421, so that
the air acts on a narrow and concentrated area and blows the water
membrane from the plane conveniently. To strengthen the scrapping
effect of the flat brush 4, in this embodiment, the air outlet
nozzle 42 is provided with a first pad and a second pad mounted
relative to the first one. The first pad and the second pad both
have a piece of rubber 422 which is a long strip matched with the
first pad or the second pad in shape and wider than the first pad
or the second pad. The rubber 422 extends out of the narrow outlet
421, so that the air is accumulated between the two pieces of
rubber 422, thus avoiding scratching the object surface and also
improving the blowing efficiency. The flat brush 4 connected to the
air outlet 95 of the blower 100 can not only easily clean vehicle
surfaces, but also quickly blow and dry water marks from the
tabletops of glass window, glass door, tea table and sink after
they were cleaned with water.
[0078] In this embodiment, the air inlet nozzle 41 of the flat
brush 4 is made of a kind of rigid material, for example plastic,
and matched with the air outlet 95 of the housing 9 in shape and
dimension. The flat brush 4 can be directly coupled to the air
outlet 95, so that the user can work conveniently with only one
hand. Of course, the present invention is not limited to this. At
places needing extension or turning, a coupling unit such as a hose
or an extension pipe can be connected between the flat brush 4 and
the air outlet 95.
[0079] As shown in FIG. 3e, FIG. 9 and FIG. 10, the blowing
accessories also comprise an inflating accessory 5. The inflating
accessory 5 is comprised of at least one nozzle. In the embodiment
shown, two nozzles (a first nozzle 51 and a second nozzle 52) are
provided. The nozzle (51, 52) has a joint end (511, 521) and a free
end (512, 522), the blowing opening of the nozzle (51, 52) is
formed on the free end (512, 522) and the joint end (511, 521) has
an inner dimension much bigger than the free end (512, 522). In
this embodiment, the free end (512, 522) has an inner dimension of
no more than 20 mm. The inner dimension reduces dramatically from
the air outlet 95 to the nozzle (51, 52), thus increasing the
pressure and the speed of air quickly and obviously, so that the
blower 100 connected with the nozzle can be used to inflate. The
free end of the first nozzle 51 namely the first free end 512 has
an inner diameter of 10 mm.about.20 mm, a ratio of a sectional area
of the air outlet 95 to a sectional area of first free end 512 is
between 20.about.100, capable of inflating large-and-medium
inflatable devices such as an air bed or a motorboat. Of course,
other than for inflation, the first nozzle 51 can also act as a
blowing nozzle to clean relatively small objects. The free end of
the second nozzle 52 namely the second free end 522 has an inner
diameter of 3 mm.about.10 mm, a ratio of a sectional area of the
air outlet 95 to a sectional area of the second free end 522 is
between 100.about.500. In this embodiment, the end face of the
second free end 522 is an inclined plane forming an included angle
of 15.degree..about.80.degree. relative to the longitudinal axis of
the second nozzle 52. The second nozzle 52 may be used to inflate a
small inflatable tool such as a swim ring or an inflatable ball. To
fully make use of the existing devices so as to control
manufacturing cost, in this embodiment, the second nozzle 52 can be
detachably connected to the first nozzle 51, meaning that the first
nozzle 51 acts as a coupling unit to provide size transition from
the air outlet 95 to the joint end of the second nozzle 52 namely
the second joint end 521 when the second nozzle 52 is used. Of
course, in other embodiments, the second joint end 521 may be set
to be consistent with the first joint end 511 in size, so that the
two nozzles (51, 52) can work independently.
[0080] The first nozzle 51 may be configured in a way that the size
of the first joint end 511 is approximately equivalent to that of
the air outlet 95 so as to be directly coupled to the air outlet
95, or indirectly coupled to the air outlet 95 through another
coupling unit. In this embodiment, the first joint end 511 is not
big enough to be directly coupled to the air outlet 95. This means
that a coupling unit with one end connected to the air outlet 95
and the other end connected to the first joint end 511 is required.
Furthermore, to fully use the existing tools and realize more
functions with fewer tools, the mentioned short tube 2 may act as
the coupling unit, meaning the short tube 2 can be used not only as
an independent blowing accessory, but also a coupling part to
provide size transition from the air outlet 95 to the first joint
end.
[0081] To expand the application scope of the nozzles (51, 52) and
improve the accessibility of the nozzles (51, 52), in this
embodiment, the inflating accessory 5 may also be comprised of a
flexible tube assembly 53. The flexible tube assembly 53 comprises
a flexible tube 531 and flexible joint ends 532 mounted at the two
ends of the flexible tube 531. The flexible tube 531 and the
flexible joint ends 532 at the two ends can be permanently or
detachably connected. The flexible joint end 532 at one end is
approximately equivalent to the first joint end 511 in dimension
and the first nozzle 51 can be sleeved on the flexible joint end
532. The flexible joint end 532 at another end is approximately
equivalent to the small end 22 of the short tube 2 in dimension to
facilitate the first nozzle 51 coupling through the short tube 2.
Namely the flexible tube assembly 53 can be detachably connected
between the first joint end 511 and the short tube 2, while the
second nozzle 52 is mounted to the first nozzle 51 if needed. In a
word, the blower 100 can inflate the inflatable devices with the
equipped first nozzle 51 and second nozzle 52, and the flexible
tube assembly 53 is configured to expand the application scope of
the nozzles. The blower 100 and the inflating accessory 5 are
combined such that the user can explore new interests other than
completing routine household cleaning work.
[0082] In addition, the flexible tube assembly 5 is configured as a
standard unit, except for its use in above-mentioned inflating
assembly 5, it can also facilitate the extending and turning around
for other nozzles, for example the second brush 61. Of course,
because the flexible tube assembly 5 is hollow, the flexible joint
end 532 can be used as its blowing opening. For example, when there
is a need to clean some corner hard to reach, maybe the flexible
tube assembly 5 connected to the short tube 2 is the best choice
instead of the single short tube 2 or the normal blower 100 tube
98.
[0083] As shown in FIG. 3f, FIG. 11 and FIG. 12, the blowing
accessories also comprise a second brush accessory 6. In this
embodiment, the second brush accessory 6 comprises a second brush
61 for removing dust from slits. The second brush 61 can be applied
to sites such as the keyboard, chassis, or instrument panels. The
second brush 61 comprises a short nozzle 611 and a bristle head
612. The short nozzle 611 extends from the joint end to the free
end. The blowing opening of the second brush 61 is formed on the
free end. The bristle head 612 is mounted around the circumference
of the blowing opening, and extends along the same direction as the
short nozzle 611. In this embodiment, the cross section of the
short nozzle 611 is round, and the inner diameter of the short
nozzle 611 reduces gradually from the joint end to the free end.
The inner diameter of the cross section of the free end is more
than 3 mm, 5 mm-20 mm in this embodiment. Of course, the cross
section of the short nozzle 611 may be round, oval, triangular,
quadrangular, other polygonal or curved, but the maximum size of
the free end does not exceed 20 mm. That's to say, the short nozzle
611 could be either of the mentioned short tube 2, first nozzle 51
and the second nozzle 52. A ratio of a sectional area of the air
outlet 95 to a sectional area of the free end of the short nozzle
611 is between 4.about.500. The bristle head 612 is configured in
the same way as that of the bristles 32 of the elbow brush 3. The
bristle head 612 may be continuously mounted around the outer
surface of the free end in a circle, or uniformly embedded in the
hole on the pipe wall at the free end. In this embodiment, because
of the small free end, the second brush 61 blows high-speed air in
a concentrated way. The bristle head 612 mounted at the front end
of the second brush 61 can be used for sweeping and the blower 100
with the second brush 61 can be used to effectively blow the dust
from the small slits.
[0084] The joint end of the second brush 61 can be configured to be
equivalent to the air outlet 95 in its inner diameter. In this way,
the second brush 61 can be directly coupled to the air outlet 95.
The joint end of the second brush 61 can also be configured to be
equivalent to the first joint end 511 in diameter, so that the
second brush 61 can be coupled to the air outlet 95 through the
short tube 2. In this embodiment, the joint end of the second brush
61 is approximately equivalent to the second joint end 521 in its
inner diameter, so that the connection mode of the second brush 61
is the same as that of the second nozzle 52, namely requiring a
coupling unit through the first nozzle 51 and the short tube 2.
[0085] Some objects are located at difficult places and can be hard
to clean with the blower 100 equipped with the second brush 61, so
the second brush 61 also has a flexible tube assembly 53 capable of
extending and turning around. The structure and configuration of
the flexible tube assembly 53 is preferably, but not necessarily,
identical to that of the flexible tube assembly 53 in the inflating
accessory 5. That is, the flexible tube assembly 53 arranged
between the first nozzle 51 and the short tube 2 can be applied
both to inflation and small objects sweeping occasions.
[0086] In the particular embodiments that use either the second
nozzle 52 or the second brush 61, the short tube 2 and the first
nozzle 51 are required. In addition, to ensure convenient operation
and broader application, the flexible tube assembly 53 is a
preferred part. However, the second nozzle 52 and the second brush
61 are idle when the user uses the first nozzle 51 for inflation.
As mentioned above, the second nozzle 52 and the second brush 61
are both small accessories and can be dismantled from the first
nozzle 51 when not in use so that they are easy to be lost. To
avoid loss, this embodiment provides a clamp 8 for the second
nozzle 52 and the second brush 61. As shown in FIG. 13, the clamp 8
comprises a first opening 81 and two small second openings 82. The
clamp 8 is made of a plastic material and allows certain elastic
deformation. In this embodiment, each second opening 82 is a
circular arc-shape and has a radius approximately equivalent to the
outer diameter of the second brush 61 or the second nozzle 52 and
therefore you can clamp the second brush 61 or the second nozzle
52. The first opening 81 is also a circular arc-shape and has a
radius equivalent to the diameter of the flexible tube 531 and
therefore the clamp 8 can be accommodated with the second brush 61
and (or) the second nozzle 52 on the flexible tube 531. Of course,
the shapes of the first opening 81 and the second openings 82 are
not limited to a circular arc, and the first opening 81 is not
limited to be fixed on the flexible tube 531, but can also be
coupled to the flexible joint end 532, the short tube 2 or other
parts such as the handle 92 on the housing 9 of the blower 100. It
should be noted that the present invention may also comprise more
than two second openings 82 to attach more accessories.
[0087] The above blowing accessories are all connected to the air
outlet 95 of the blower 100 directly or indirectly through the
coupling unit so as to blow fallen leaves from the higher gutters
and water marks from glass, sweep the reachable platform or window
lattices and slits in the instrument panel and drawers, and inflate
some common devices. Of course, the blowing accessories may also
comprise other functional accessories not listed above. All
accessories figured out by those skilled in the art to blow through
the air outlet 95 can be used as blowing accessories of the present
invention coupled to the air outlet 95. To facilitate use of each
of the blowing accessories, the joint of the air outlet 95 and each
of the blowing accessories is a detachable connecting structure. In
this embodiment, the air outlet 95 adopts the same structure to
connect the short tube 2, the middle pipe 11, the elbow brush 3 and
the flat brush 4. The air outlet 95 is provided with at least one
elastic button 950, while the joint end of either of the short tube
2, the middle pipe 11, the elbow brush 3 and the flat brush 4 is
provided with at least one orifice 10 matched with the button 950
in size, shape and position. During installation, the short tube 2,
the middle pipe 11, the elbow brush 3 or the flat brush 4 is
coupled to the air outlet 95, and then the elastic button 950 is
coupled with the orifice 10 in a detachable way. Of course, the
positions of the elastic button 950 and the orifice 10 can be
exchanged, and the detachable fit between the above accessories and
the air outlet 95 may be in a range of modes, such as a fit between
a rigid bump and an L-shaped groove and threaded fit. Other common
connections may be known in the art.
[0088] As shown in FIG. 14 and FIG. 15, the blower 100 can also
comprise a deflating accessory 7 that can be connected to the air
inlet 94 to deflate air through the air suction action of the air
inlet 94. In this embodiment, the deflating accessory 7 comprises a
deflating funnel 71 in a longitudinal connection with a uniform
wall and a deflating nozzle. The deflating funnel 71 has a big
opening 711 with a big inner diameter and a small opening 712 with
a small inner diameter, where the big opening 711 is used for
covering and communicating with the air inlet 94 to prevent air
leakage during deflating. The small opening 712 is used for
connecting and communicating with the deflating nozzle. The
deflating nozzle has a deflation opening at one end away from the
deflating funnel 71. The inner diameter of the deflation opening is
3 mm.about.20 mm.
[0089] As shown in FIG. 1, FIG. 14, and FIG. 15, the air inlet 94
of the blower 100 is usually fixed and provided with an air inlet
grill 96 shaped as a reverse pyramid. The air inlet grill 96 is
provided with a plurality of grids 960 to prevent hands or items
from injury or damage because of contact with the rotating fan or
the motor driving the fan. A detachable interlocking structure is
arranged between the big opening 711 of the deflating funnel 71 and
the air inlet grill 96. In this embodiment, the outer circumference
of the big opening 711 is symmetrically provided with two pushing
blocks 713. The two pushing blocks 713 are respectively connected
to the hooks (not shown in the figure) in the deflating funnel 71.
The hooks can be matched with the grids 960 on the air inlet grill
96 to make the connection between the deflating funnel 71 and the
air inlet grill 96. When the deflating funnel 71 is required to be
mounted, the hooks are engaged with the grids 960. When the
deflating funnel 71 is required to be dismantled, the hooks are
disengaged from the grids 960 by pressing the pushing button 713
with the user's thumb and forefinger. Of course, the number of the
pushing blocks 713 is not limited to two, and the interlocking
structure mentioned above is only one form of connection between
the deflating funnel 71 and the air inlet grill 96, including some
commonly understand structures known in the art.
[0090] In this embodiment, the deflating nozzle has features
identical to those of the mentioned nozzles (51, 52). The nozzles
(51, 52) acting as an inflating accessory 5 can also be used for
pumping as long as the nozzles are shifted from a connection with
the air outlet 95 into a connection with the air inlet 94.
Corresponding to the inflation operation, the deflating nozzle also
comprises a first nozzle 51 and a second nozzle 52. The first
nozzle 51 can be directly connected to the small opening 712 of the
deflating funnel 71, and second nozzle 52 is coupled with the first
nozzle 51. The specific structure and coupling of the first nozzle
51 and the second nozzle 52 have been described in detail
above.
[0091] Like the inflation operation and cleaning of the slits and
instrument panel, the user may not be able to directly operate the
blower 100 equipped with the deflating accessory 7 in some narrow
or shaded spaces when pumping is required. Therefore, the deflating
accessory 7 also can have a flexible tube assembly 53 connected
between the deflating funnel 71 and the first nozzle 51. In this
embodiment, the flexible tube 531 in the deflating accessory 7 is
consistent with the above-mentioned flexible tube assembly 53,
namely using the same flexible tube assembly 53 with inflating
accessory 5 and the second brush accessory 6.
[0092] When the above-mentioned deflating accessory 7 is used for
pumping air, the rotating fan quickly reduces the air pressure in
the air channel formed by the inner walls of the deflating funnel
71 and the deflating nozzle, or the combination of the former two
and the flexible tube assembly 53. The air continuously flows out
from the inflated devices to be deflated and then into the air
channel of the blower 100, thus completing the whole deflation
process. The blower 100 equipped with the deflating accessory 7 can
pump a variety of inflatable devices such as the mentioned air bed,
motorboat, swim ring, inflatable balls, etc. The deflating
accessory 7 can be used to pump out air when those devices are
required to be put away after use, thus reducing the storage
space.
[0093] Except for the deflating accessory 7, the air inlet 94 can
also be connected to other air suction accessories, such as the
second brush accessory 6. Likewise, the deflating funnel 71 can act
as a coupling unit to connect the combination of the flexible tube
assembly 53, the first nozzle 51 and the bristles 32 to the air
inlet 94. Thus, the blower 100 can be used to suck dust. Of course,
when the suction or blower device of the present invention is a
suction assembly, the air inlet 94 can be connected to more air
suction accessories.
[0094] The definitions of the above members are not limited to
structures or shapes mentioned in the above embodiments, and those
skilled in the art may make simple substitutes or additional uses.
All modifications and substitutes made on the basis of the present
invention that come within the scope or spirit of the attached
claims shall fall within the protection and scope of the present
invention.
* * * * *